1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #ifndef INTELCONTEXT_INC
29 #define INTELCONTEXT_INC
34 #include "main/mtypes.h"
39 /* Evil hack for using libdrm in a c++ compiler. */
44 #include "intel_bufmgr.h"
46 #include "intel_screen.h"
47 #include "intel_tex_obj.h"
54 #include "tnl/t_vertex.h"
59 #define INTEL_WRITE_PART 0x1
60 #define INTEL_WRITE_FULL 0x2
61 #define INTEL_READ 0x4
65 #define likely(expr) (__builtin_expect(expr, 1))
66 #define unlikely(expr) (__builtin_expect(expr, 0))
68 #define likely(expr) (expr)
69 #define unlikely(expr) (expr)
73 struct intel_sync_object
{
74 struct gl_sync_object Base
;
76 /** Batch associated with this sync object */
82 struct intel_batchbuffer
{
83 /** Current batchbuffer being queued up. */
85 /** Last BO submitted to the hardware. Used for glFinish(). */
86 drm_intel_bo
*last_bo
;
87 /** BO for post-sync nonzero writes for gen6 workaround. */
88 drm_intel_bo
*workaround_bo
;
89 bool need_workaround_flush
;
91 struct cached_batch_item
*cached_items
;
94 uint16_t used
, reserved_space
;
97 #define BATCH_SZ (8192*sizeof(uint32_t))
99 uint32_t state_batch_offset
;
101 bool needs_sol_reset
;
110 * intel_context is derived from Mesa's context class: struct gl_context.
114 struct gl_context ctx
; /**< base class, must be first field */
118 void (*destroy
) (struct intel_context
* intel
);
119 void (*finish_batch
) (struct intel_context
* intel
);
120 void (*new_batch
) (struct intel_context
* intel
);
122 void (*update_texture_surface
)(struct gl_context
*ctx
,
124 uint32_t *binding_table
,
125 unsigned surf_index
);
126 void (*update_renderbuffer_surface
)(struct brw_context
*brw
,
127 struct gl_renderbuffer
*rb
,
130 void (*update_null_renderbuffer_surface
)(struct brw_context
*brw
,
132 void (*create_constant_surface
)(struct brw_context
*brw
,
136 uint32_t *out_offset
,
140 * Send the appropriate state packets to configure depth, stencil, and
141 * HiZ buffers (i965+ only)
143 void (*emit_depth_stencil_hiz
)(struct brw_context
*brw
,
144 struct intel_mipmap_tree
*depth_mt
,
145 uint32_t depth_offset
,
146 uint32_t depthbuffer_format
,
147 uint32_t depth_surface_type
,
148 struct intel_mipmap_tree
*stencil_mt
,
149 bool hiz
, bool separate_stencil
,
150 uint32_t width
, uint32_t height
,
151 uint32_t tile_x
, uint32_t tile_y
);
158 unsigned int maxBatchSize
;
161 * Generation number of the hardware: 2 is 8xx, 3 is 9xx pre-965, 4 is 965.
169 bool has_separate_stencil
;
170 bool must_use_separate_stencil
;
175 drm_intel_context
*hw_ctx
;
177 struct intel_batchbuffer batch
;
179 drm_intel_bo
*first_post_swapbuffers_batch
;
184 * Set if we're either a debug context or the INTEL_DEBUG=perf environment
185 * variable is set, this is the flag indicating to do expensive work that
186 * might lead to a perf_debug() call.
194 uint32_t buffer_offset
;
198 uint32_t max_gtt_map_object_size
;
203 bool always_flush_batch
;
204 bool always_flush_cache
;
205 bool disable_throttling
;
207 GLenum reduced_primitive
;
210 * Set if rendering has occured to the drawable's front buffer.
212 * This is used in the DRI2 case to detect that glFlush should also copy
213 * the contents of the fake front buffer to the real front buffer.
215 bool front_buffer_dirty
;
218 * Track whether front-buffer rendering is currently enabled
220 * A separate flag is used to track this in order to support MRT more
223 bool is_front_buffer_rendering
;
225 * Track whether front-buffer is the current read target.
227 * This is closely associated with is_front_buffer_rendering, but may
228 * be set separately. The DRI2 fake front buffer must be referenced
231 bool is_front_buffer_reading
;
235 __DRIcontext
*driContext
;
236 struct intel_screen
*intelScreen
;
239 * Configuration cache
241 driOptionCache optionCache
;
245 * Align a value down to an alignment value
247 * If \c value is not already aligned to the requested alignment value, it
248 * will be rounded down.
250 * \param value Value to be rounded
251 * \param alignment Alignment value to be used. This must be a power of two.
255 #define ROUND_DOWN_TO(value, alignment) ((value) & ~(alignment - 1))
257 static INLINE
uint32_t
258 U_FIXED(float value
, uint32_t frac_bits
)
260 value
*= (1 << frac_bits
);
261 return value
< 0 ? 0 : value
;
264 static INLINE
uint32_t
265 S_FIXED(float value
, uint32_t frac_bits
)
267 return value
* (1 << frac_bits
);
270 /* ================================================================
271 * From linux kernel i386 header files, copes with odd sizes better
272 * than COPY_DWORDS would:
273 * XXX Put this in src/mesa/main/imports.h ???
275 #if defined(i386) || defined(__i386__)
276 static INLINE
void * __memcpy(void * to
, const void * from
, size_t n
)
279 __asm__
__volatile__(
284 "1:\ttestb $1,%b4\n\t"
288 : "=&c" (d0
), "=&D" (d1
), "=&S" (d2
)
289 :"0" (n
/4), "q" (n
),"1" ((long) to
),"2" ((long) from
)
294 #define __memcpy(a,b,c) memcpy(a,b,c)
298 /* ================================================================
301 extern int INTEL_DEBUG
;
303 #define DEBUG_TEXTURE 0x1
304 #define DEBUG_STATE 0x2
305 #define DEBUG_IOCTL 0x4
306 #define DEBUG_BLIT 0x8
307 #define DEBUG_MIPTREE 0x10
308 #define DEBUG_PERF 0x20
309 #define DEBUG_BATCH 0x80
310 #define DEBUG_PIXEL 0x100
311 #define DEBUG_BUFMGR 0x200
312 #define DEBUG_REGION 0x400
313 #define DEBUG_FBO 0x800
314 #define DEBUG_GS 0x1000
315 #define DEBUG_SYNC 0x2000
316 #define DEBUG_PRIMS 0x4000
317 #define DEBUG_VERTS 0x8000
318 #define DEBUG_DRI 0x10000
319 #define DEBUG_SF 0x20000
320 #define DEBUG_STATS 0x100000
321 #define DEBUG_WM 0x400000
322 #define DEBUG_URB 0x800000
323 #define DEBUG_VS 0x1000000
324 #define DEBUG_CLIP 0x2000000
325 #define DEBUG_AUB 0x4000000
326 #define DEBUG_SHADER_TIME 0x8000000
327 #define DEBUG_BLORP 0x10000000
328 #define DEBUG_NO16 0x20000000
330 #ifdef HAVE_ANDROID_PLATFORM
331 #define LOG_TAG "INTEL-MESA"
332 #include <cutils/log.h>
336 #define dbg_printf(...) ALOGW(__VA_ARGS__)
338 #define dbg_printf(...) printf(__VA_ARGS__)
339 #endif /* HAVE_ANDROID_PLATFORM */
341 #define DBG(...) do { \
342 if (unlikely(INTEL_DEBUG & FILE_DEBUG_FLAG)) \
343 dbg_printf(__VA_ARGS__); \
346 #define perf_debug(...) do { \
347 static GLuint msg_id = 0; \
348 if (unlikely(INTEL_DEBUG & DEBUG_PERF)) \
349 dbg_printf(__VA_ARGS__); \
350 if (intel->perf_debug) \
351 _mesa_gl_debug(&intel->ctx, &msg_id, \
352 MESA_DEBUG_TYPE_PERFORMANCE, \
353 MESA_DEBUG_SEVERITY_MEDIUM, \
357 #define WARN_ONCE(cond, fmt...) do { \
358 if (unlikely(cond)) { \
359 static bool _warned = false; \
360 static GLuint msg_id = 0; \
362 fprintf(stderr, "WARNING: "); \
363 fprintf(stderr, fmt); \
366 _mesa_gl_debug(ctx, &msg_id, \
367 MESA_DEBUG_TYPE_OTHER, \
368 MESA_DEBUG_SEVERITY_HIGH, fmt); \
373 /* ================================================================
377 extern bool intelInitContext(struct intel_context
*intel
,
379 unsigned major_version
,
380 unsigned minor_version
,
381 const struct gl_config
* mesaVis
,
382 __DRIcontext
* driContextPriv
,
383 void *sharedContextPrivate
,
384 struct dd_function_table
*functions
,
385 unsigned *dri_ctx_error
);
387 extern void intelFinish(struct gl_context
* ctx
);
388 extern void _intel_flush(struct gl_context
* ctx
, const char *file
, int line
);
390 #define intel_flush(ctx) _intel_flush(ctx, __FILE__, __LINE__)
392 extern void intelInitDriverFunctions(struct dd_function_table
*functions
);
394 void intel_init_syncobj_functions(struct dd_function_table
*functions
);
397 DRI_CONF_BO_REUSE_DISABLED
,
398 DRI_CONF_BO_REUSE_ALL
401 extern int intel_translate_shadow_compare_func(GLenum func
);
402 extern int intel_translate_compare_func(GLenum func
);
403 extern int intel_translate_stencil_op(GLenum op
);
404 extern int intel_translate_logic_op(GLenum opcode
);
406 void intel_update_renderbuffers(__DRIcontext
*context
,
407 __DRIdrawable
*drawable
);
408 void intel_prepare_render(struct intel_context
*intel
);
411 intel_resolve_for_dri2_flush(struct intel_context
*intel
,
412 __DRIdrawable
*drawable
);
415 intelInitExtensions(struct gl_context
*ctx
);
417 intelInitClearFuncs(struct dd_function_table
*functions
);
419 /*======================================================================
420 * Inline conversion functions.
421 * These are better-typed than the macros used previously:
423 static INLINE
struct intel_context
*
424 intel_context(struct gl_context
* ctx
)
426 return (struct intel_context
*) ctx
;
430 is_power_of_two(uint32_t value
)
432 return (value
& (value
- 1)) == 0;